Finding the Fourth Proportional to 286,413.68, 429,620.45 and 73,181.99
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Solution
The fourth proportional to 286,413.68, 429,620.45 and 73,181.99 is: 109,772.97
Step by Step Solution
- Step 1: Write the proportion equation
286,413.68 : 429,620.45 = 73,181.99 : x - Step 2: Convert to fraction form
286,413.68/429,620.45 = 73,181.99/x - Step 3: Cross multiply
286,413.68x = 429,620.45 × 73,181.99 - Step 4: Simplify right side
286,413.68x = 31,440,479,475.70 - Step 5: Solve for x
x = 31,440,479,475.70/286,413.68 - Step 6: Final answer
x = 109,772.97
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.